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The metal used to recover copper from a solution of copper sulphate is ?

  • Na
  • Ag
  • Hg
  • Fe

Answer: Option D

Similar Questions :

1. Which metal is heaviest ?

  • osmium
  • mercury
  • iron
  • nickle

Answer: Option A

2. What is used to avoid melting of ice ?

  • Gelatine
  • Butane
  • Methane
  • Any acid

Answer: Option A

3. Oil of vitriol is

  • nitric acid
  • sulphuric acid
  • hydrochloric acid
  • phosphoric acid

Answer: Option B

4. Air contains maximum amount of

  • oxygen
  • nitrogen
  • hydrogen
  • carbon dioxide

Answer: Option B

5. Rare gases are

  • mono atomic
  • di atomic
  • tri atomic
  • None of above

Answer: Option A

Explanation:

Rare gases are mono atomic.

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